107989561 has 2 divisors, whose sum is σ = 107989562. Its totient is φ = 107989560.

The previous prime is 107989543. The next prime is 107989579. The reversal of 107989561 is 165989701.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (107989543) and next prime (107989579).

It can be written as a sum of positive squares in only one way, i.e., 83832336 + 24157225 = 9156^2 + 4915^2 .

It is an emirp because it is prime and its reverse (165989701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 107989561 - 2⁷ = 107989433 is a prime.

It is not a weakly prime, because it can be changed into another prime (107989501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53994780 + 53994781.

It is an arithmetic number, because the mean of its divisors is an integer number (53994781).

Almost surely, 2^107989561 is an apocalyptic number.

It is an amenable number.

107989561 is a deficient number, since it is larger than the sum of its proper divisors (1).

107989561 is an equidigital number, since it uses as much as digits as its factorization.

107989561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 46.

The square root of 107989561 is about 10391.8025866545. The cubic root of 107989561 is about 476.2049716891.

The spelling of 107989561 in words is "one hundred seven million, nine hundred eighty-nine thousand, five hundred sixty-one".